Officials finally think they know origin of hantavirus outbreak on cruise that caused three deaths

Oceanwide Expeditions said Thursday that no passengers or crew members currently on the ship are showing signs of illness, though experts warn the outbreak investigation is still ongoing.

Health officials who are investigating the outbreak believe they may have identified where the infection began; during a birdwatching excursion near a landfill site in Ushuaia — the southernmost city in the country.

According to an Associated Press report citing Argentine officials, investigators believe a Dutch couple may have contracted the virus during a visit to an area near Ushuaia’s landfill site, which reportedly had a large rodent population. It is believed they may have unknowingly brought the infection onboard the ship.